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Browsing MACSI - Mathematics Application Consortium for Science & Industry by Title

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  • Moroney, Kevin M.; Kotamarthy, Lalith; Muthancheri, Indu; Ramachandran, Rohit; Vynnycky, Michael (Elsevier, 2021)
    Accurate mechanistic in vitro dissolution models can deliver insight into drug release behaviour and guide formulation development. Drug release profiles from drug-excipient granules can be impacted by variation of porosity ...
  • Melnik, Sergey; Ward, Jonathan A; Gleeson, James P.; Porter, Mason A (American Institute of Physics, 2013)
    The spread of ideas across a social network can be studied using complex contagion models, in which agents are activated by contact with multiple activated neighbors. The investigation of complex contagions can provide ...
  • Cellai, Davide; Bianconi, Ginestra (American Physical Society, 2016)
    In multiplex networks with a large number of layers, the nodes can have different activities, indicating the total number of layers in which the nodes are present. Here we model multiplex networks with heterogeneous activity ...
  • Keating, Leah A.; Gleeson, James P.; O'Sullivan, David J.P. (American Physical Society, 2022)
    Complex contagion adoption dynamics are characterized by a node being more likely to adopt after multiple network neighbors have adopted. We show how to construct multitype branching processes to approximate complex contagion ...
  • Gessey-Jones, Thomas; Connaughton, Colm; Dunbard, Robin; Kenna, Ralph; MacCarron, Pádraig; O'Conchobhaire, Cathal; Yose, Joseph (National Academy of Sciences, 2020)
    Network science and data analytics are used to quantify static and dynamic structures in George R. R. Martin’s epic novels, A Song of Ice and Fire, works noted for their scale and complexity. By tracking the network of ...
  • Lawlor, Brian; Segurado, Ricardo; Kennelly, Sean; Olde Rikkert, Marcel G. M.; Howard, Robert; Pasquier, Florence; Borjesson-Hanson, Anne; Tsolaki, Magda; Lucca, Ugo; Molloy, D. William; Coen, Robert; Riepe, Matthias W.; Kálmán, János; Kenny, Rose Anne; Cregg, Fiona; O'Dwyer, Sarah; Walsh, Cathal Dominic; Adams, Jessica; Banzi, Rita; Breuilh, Laetitia; Daly, Leslie; Hendrix, Suzanne; Aisen, Paul; Gaynor, Siobhan; Sheikhi, Ali; Taekema, Diana G.; Verhey, Frans R.; Nemni, Raffaello; Nobili, Flavio; Franceschi, Massimo; Frisoni, Giovanni; Zanetti, Orazio; Konsta, Anastasia; Anastasios, Orologas; Nenopoulou, Styliani; Tsolaki-Tagaraki, Fani; Pakaski, Magdolna; Dereeper, Olivier; de la Sayette, Vincent; Sénéchal, Olivier; Lavenu, Isabelle; Devendeville, Agnés; Calais, Gauthier; Crawford, Fiona; Mullan, Michael (Public Library of Science, 2018)
    Background This study reports the findings of the first large-scale Phase III investigator-driven clinical trial to slow the rate of cognitive decline in Alzheimer disease with a dihydropyridine (DHP) calcium channel ...
  • Carletti, Timoteo; Asllani, Malbor; Fanelli, Duccio; Latora, Vito (American Physical Society, 2020)
    Random walks are the simplest way to explore or search a graph and have revealed a very useful tool to investigate and characterize the structural properties of complex networks from the real world. For instance, they have ...
  • Timoney, Catherine M. (University of Limerick, 2017)
    This work is concerned with finding accurate numerical approximations to nonlinear reaction-diffusion problems that exhibit layer phenomena. It considers three variations of problems of this type. These are; a ...
  • Fannon, James S.; Fowler, Andrew C.; Moyles, Iain R. (The Royal Society Publishing, 2017)
    We summarize the present form of the instability theory for drumlin formation, which describes the coupled subglacial flow of ice, water and sediment. This model has evolved over the last 20 years, and is now at the point ...
  • Khaleque, Tania S; Fowler, Andrew C.; Howell, P D; Vynnycky, Michael (American Institute of Physics, 2015)
    Motivated by convection of planetary mantles, we consider a mathematical model for Rayleigh-Benard convection in a basally heated layer of a fluid whose viscosity depends strongly on temperature and pressure, defined in ...
  • Kohlstädt, Sebastian; Vynnycky, Michael; Goeke, Stephan; Gebauer-Teichmann, Andreas (MDPI, 2021)
    This paper investigates the critical plunger velocity in high-pressure die casting during the slow phase of the piston motion and how it can be determined with computational fluid dynamics (CFD) in open source software. ...
  • Vynnycky, Michael; Mitchell, Sarah L. (Cambridge University Press, 2022)
    In this paper, we consider the steady-state base flow for natural convection in a vertical porous slab with permeable boundaries. Although recent work proposed a one-dimensional solution for this flow, we make a strong ...
  • Vynnycky, Michael; Saleem, S.; Devine, Kevin M.; Florio, B. J.; Mitchell, Sarah L.; O'Brien, Stephen B.G. (The Royal Society, 2017)
    Asymptotic methods are employed to revisit an earlier model for oscillation-mark formation in the continuous casting of steel. A systematic non-dimensionalization of the governing equations, which was not carried out ...
  • Vynnycky, Michael (Elsevier, 2022)
    In this paper, we reassess the local solute redistribution equation (LSRE) of macrosegregation which, since it first appeared in 1960s, has served as a cornerstone for understanding the composition variations that occur ...
  • Dassios, Ioannis K.; Cuffe, Paul; Keane, Andrew (2015)
    Electrical power system calculations rely heavily on the Y_{bus} matrix, which is the Laplacian matrix of the network under study, weighted by the complex-valued admittance of each branch. It is often useful to partition ...
  • Faqeeh, Ali (University of Limerick, 2016)
    Many of the systems we observe in nature, in societies, or in infrastructures are in the form of a network of interacting units. This underlying network structure shapes the behavior of such systems and is an indispensable ...
  • Cellai, Davide; López, Eduardo; Zhou, Jie; Gleeson, James P.; Bianconi, Ginestra (American Physical Society, 2013)
    From transportation networks to complex infrastructures, and to social and communication networks, a large variety of systems can be described in terms of multiplexes formed by a set of nodes interacting through different ...
  • Fowler, Andrew C. (Springer, 2019)
    In this paper we revisit the problem of explaining phase transition by a study of a form of the Boltzmann equation, where inter-molecular attraction is included by means of a Vlasov term in the evolution equation for the ...
  • Dassios, Ioannis K. (Elsevier, 2018)
    In this article, we focus on a generalized problem of linear non-autonomous fractional nabla difference equations. Firstly, we define the equations and describe how this family of problems covers other linear fractional ...
  • Dassios, Ioannis K.; Fountoulakis, Kimon; Gondzio, Jacek (Society for Industrial and Applied Mathematics, 2016)
    In this paper we are concerned with the solution of Compressed Sensing (CS) problems where the signals to be recovered are sparse in coherent and redundant dictionaries. We extend the primal-dual Newton Conjugate Gradients ...

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